CAJ | 학술논문

金属/分子/金属结是分子电子学中的基本单元。根据电子的相位是否发生改变，分子结中的电子输运可以分为相干输运和非相干输运两类。在实验上，分子结的表征方法可以分为电学性质表征和非电学性质表征两类。本文借助能级图，首先对分子结的电子输运机理作了简明解释。在此基础上，结合文献报道和本课题组此前的工作，对分子结的一些常用电学表征方法，包括电流-电压特性曲线、电流-时间曲线、电导统计柱状图、转变电压谱、散粒噪声测试、非弹性电子隧道谱和热电效应法进行了介绍。
금속/분자/금속결시분자전자학중적기본단원。근거전자적상위시부발생개변，분자결중적전자수운가이분위상간수운화비상간수운량류。재실험상，분자결적표정방법가이분위전학성질표정화비전학성질표정량류。본문차조능급도，수선대분자결적전자수운궤리작료간명해석。재차기출상，결합문헌보도화본과제조차전적공작，대분자결적일사상용전학표정방법，포괄전류-전압특성곡선、전류-시간곡선、전도통계주상도、전변전압보、산립조성측시、비탄성전자수도보화열전효응법진행료개소。
Although molecular electronics emerged several decades ago, it is still concerning about fundamen- tal issues so far. Metal/molecule/metal junction is a conceptually basic unit in molecular electronics. The mechanism of electron transport through metal/molecule/metal junction has attracted great interest. In general, the mechanisms for electron transport through metal/molecule/metal junctions can be divided into two categories:coherent transport and non-coherent transport according to the phase change of tunneling electrons. In this review, the electron transport mechanism is illustrated briefly by employing energy diagrams. More- over, several extensively measured approaches for studying metal/molecule/metal junctions, including I-V characteristic curve, I-t trace and conductance histogram, transition voltage spectroscopy, shot noise, inelastic electron tunneling spectroscopy, and thermoelectricity are introduced through referring to some recent publica- tions including our works.